Greatest Discoveries With Bill Nye |10 Questions| With Correct Answers.

sunlight, water, food, gases {Ans: What kinds of things are necessary to sustain life on Earth?}all the dust and gas come up in the earth {Ans: What happened when the enormous asteroid hit Earth some 65 million years ago?}dogs,cats, horses, rabbits {Ans: What are different types of animal species?}they walked on two feet {Ans: What have we learned from Lucy?}the process that results in survival and reproduction of individuals best suited to their environment {Ans: What is natural selection?}that release the nutrients in the ocean {Ans: What are hydrothermal vents?}